{"id":3353806,"url":"https://alion.io/job/itsg-global-java-backend-fullstack-developer-kontraktor","title":"Java Backend / Fullstack Developer (Kontraktor)","company":{"id":4432025,"name":"ITSG Global","domain":"itsg-global.com","url":"https://alion.io/company/itsg-global","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Traffit","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":{"min":15100,"max":21800,"currency":"PLN","period":"month","gross":null,"usd_annual":66276},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"AssertJ","optional":false},{"name":"Azure","optional":false},{"name":"Claude Code","optional":false},{"name":"Copilot","optional":false},{"name":"Cursor","optional":false},{"name":"Docker","optional":false},{"name":"Java","optional":false},{"name":"JUnit","optional":false},{"name":"Linux","optional":false},{"name":"Mockito","optional":false},{"name":"Spring Boot","optional":false},{"name":"Testcontainers","optional":false},{"name":"TypeScript","optional":false},{"name":"CI/CD","optional":true},{"name":"Git","optional":true},{"name":"Hibernate","optional":true},{"name":"Kotlin","optional":true},{"name":"PostgreSQL","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-10-27T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-27T00:00:00Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"Rozwój usług backendowych w Javie i Spring Boot, zarówno w rdzeniu platformy, jak i w projektach klientów.\nImplementacja przetwarzania danych z urządzeń w architekturze opartej na zdarzeniach (Kafka, Event Hubs, Service Bus).\nPisanie testów automatycznych (jednostkowych i integracyjnych) jako stały element realizowanych zadań, również w Kotlinie.\nUdział w code review i doprowadzanie zmian do środowiska produkcyjnego.\nPraca z kontenerami (Docker) i usługami Azure.\nAktualizacje zależności i rozwój starszych komponentów, w tym migracje do nowszych wersji Javy i Spring Boot.\nRealizacja zadań w obszarach, które są dla Ciebie nowe, w tym we frontendzie w TypeScript/React. AI wspiera Cię w szybkim wejściu w temat, a Ty oceniasz i bierzesz odpowiedzialność za jakość rozwiązania.\nAnaliza i naprawa błędów w rozwiązaniach działających w środowisku produkcyjnym.\n\nKogo poszukujemy?\nMinimum 2 lat komercyjnego doświadczenia w tworzeniu usług backendowych w Javie i Spring Boot.\nCodzienna praca z narzędziami AI wspierającymi programowanie (np. Claude Code, Cursor, GitHub Copilot). Ważne jest dla nas, żebyś wykorzystywał(a) AI do szybkiego wchodzenia w nowe technologie i problemy, niezależnie od języka.\nUmiejętność krytycznej oceny kodu wygenerowanego przez AI: czy jest poprawny, czytelny, bezpieczny, pasuje do architektury i jest odpowiednio przetestowany.\nDoświadczenie z usługami chmury Azure.\nPraktyczna znajomość Dockera i Linux.\nPisanie testów automatycznych jako naturalna część pracy (JUnit 5, Mockito, AssertJ; Testcontainers mile widziany).\nZnajomość SQL i pracy z relacyjną bazą danych (np. PostgreSQL, Hibernate).\nZnajomość TypeScript na poziomie pozwalającym zrozumieć i ocenić kod frontendowy. Nie oczekujemy specjalizacji, ale też nie traktujemy TS jako czegoś, co „wygeneruje się samo”.\nZnajomość Git i podstaw CI/CD.\nKomunikatywna znajomość języka angielskiego w mowie i piśmie.\nTech stack\nAI, Java, Spring Boot, Azure, Test automation","description_format":"text","description_chars":1956,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Software","Logistics"],"lifecycle":[{"event":"open","at":"2026-10-27T19:23:00Z"}],"visa":[],"liveness":{"score":99,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.993,"p_room":1,"age_days":2,"expected_fill_days":27,"reasons":["seen:2","urgency","velocity","win:early"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":66276,"is_top_pay":false},"html_url":"https://alion.io/job/itsg-global-java-backend-fullstack-developer-kontraktor","json_url":"https://alion.io/job/itsg-global-java-backend-fullstack-developer-kontraktor.json","meta":{"generated_at":"2026-10-29T17:03:50Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":25530,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4432025},"rest":"https://alion.io/mcp/rest/get_company?id=4432025"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fitsg-global-java-backend-fullstack-developer-kontraktor"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fitsg-global-java-backend-fullstack-developer-kontraktor"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fitsg-global-java-backend-fullstack-developer-kontraktor"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/itsg-global-java-backend-fullstack-developer-kontraktor\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fitsg-global-java-backend-fullstack-developer-kontraktor"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3353806}},{"tool":"search_jobs","arguments":{"company":"itsg-global.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3353806},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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